Group items tagged

Simply joining a few groups at social networking sites may reveal enough information for hackers to personally identify you, according to some recent computer science research. In a paper that will be presented at a security conference later this year, an international team of academics describes how they were able to build membership sets using information that social networking sites make available to the public, and then leverage an existing attack on browsing history to check for personal identity. That information, they argue, can then be combined with other data to create further security risks, such as a personalized phishing attack.

It's fun to brag when you're at a great bar or going off on vacation. Social networking sites and location-based apps have made it easy to broadcast that kind of information to your friends. The problem is that you may not just be making your friends jealous, but supplying criminals with useful information as well. A new Web site called PleaseRobMe.com has drawn attention to the issue by repurposing posts from foursquare, a social networking site that lets people share the latest about their whereabouts. PleaseRobMe demonstrates that it's easy for anyone to find out you're not at home - and therefore, are presenting an "opportunity" for burglary. "There are physical and economic safety risks when you're publicizing to the world where you are," says Kevin Bankston, a senior staff attorney with the Electronic Frontier Foundation. "It's obviously a treasure trove of information for criminals. PleaseRobMe is a good demonstration of how easy it is."